import Vue from 'vue'
import VueRouter from 'vue-router'


// import login from './components/login.vue'
Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      name: 'login',
      component: () => import('../components/login.vue')
    },
    {
      path: '/home',
      name: 'home',
      component: () => import('../components/home.vue')
    }
  ]
})

router.beforeEach((to, from, next) => {
  //to 将要访问的路径
  //from 代表从哪个路径跳转而来
  //next 是一个函数，表示放行
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router

